﻿using System;
using System.Data;
using System.Text;
using System.Data.SQLite;

namespace Clipper.DAL
{
	/// <summary>
	/// 数据访问类:SystemConfig
	/// </summary>
	public partial class SystemConfig
	{
		public SystemConfig()
		{}
		#region  BasicMethod

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(string parameterName)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from SystemConfig");
			strSql.Append(" where parameterName=@parameterName ");
			SQLiteParameter[] parameters = {
					new SQLiteParameter("@parameterName", DbType.String,20)			};
			parameters[0].Value = parameterName;

			return SQLiteHelper.Exists(strSql.ToString(),parameters);
		}


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public bool Add(Clipper.Model.SystemConfig model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into SystemConfig(");
			strSql.Append("parameterName,value)");
			strSql.Append(" values (");
			strSql.Append("@parameterName,@value)");
			SQLiteParameter[] parameters = {
					new SQLiteParameter("@parameterName", DbType.String,20),
					new SQLiteParameter("@value", DbType.String,20)};
			parameters[0].Value = model.parameterName;
			parameters[1].Value = model.value;

			int rows=SQLiteHelper.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 更新一条数据
		/// </summary>
		public bool Update(Clipper.Model.SystemConfig model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("update SystemConfig set ");
			strSql.Append("value=@value");
			strSql.Append(" where parameterName=@parameterName ");
			SQLiteParameter[] parameters = {
					new SQLiteParameter("@value", DbType.String,20),
					new SQLiteParameter("@parameterName", DbType.String,20)};
			parameters[0].Value = model.value;
			parameters[1].Value = model.parameterName;

			int rows=SQLiteHelper.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}

		/// <summary>
		/// 删除一条数据
		/// </summary>
		public bool Delete(string parameterName)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from SystemConfig ");
			strSql.Append(" where parameterName=@parameterName ");
			SQLiteParameter[] parameters = {
					new SQLiteParameter("@parameterName", DbType.String,20)			};
			parameters[0].Value = parameterName;

			int rows=SQLiteHelper.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 批量删除数据
		/// </summary>
		public bool DeleteList(string parameterNamelist )
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from SystemConfig ");
			strSql.Append(" where parameterName in ("+parameterNamelist + ")  ");
			int rows=SQLiteHelper.ExecuteSql(strSql.ToString());
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public Clipper.Model.SystemConfig GetModel(string parameterName)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select parameterName,value from SystemConfig ");
			strSql.Append(" where parameterName=@parameterName ");
			SQLiteParameter[] parameters = {
					new SQLiteParameter("@parameterName", DbType.String,20)			};
			parameters[0].Value = parameterName;

			Clipper.Model.SystemConfig model=new Clipper.Model.SystemConfig();
			DataSet ds=SQLiteHelper.Query(strSql.ToString(),parameters);
			if(ds.Tables[0].Rows.Count>0)
			{
				return DataRowToModel(ds.Tables[0].Rows[0]);
			}
			else
			{
				return null;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public Clipper.Model.SystemConfig DataRowToModel(DataRow row)
		{
			Clipper.Model.SystemConfig model=new Clipper.Model.SystemConfig();
			if (row != null)
			{
				if(row["parameterName"]!=null)
				{
					model.parameterName=row["parameterName"].ToString();
				}
				if(row["value"]!=null)
				{
					model.value=row["value"].ToString();
				}
			}
			return model;
		}

		/// <summary>
		/// 获得数据列表
		/// </summary>
		public DataSet GetList(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select parameterName,value ");
			strSql.Append(" FROM SystemConfig ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			return SQLiteHelper.Query(strSql.ToString());
		}

		/// <summary>
		/// 获取记录总数
		/// </summary>
		public int GetRecordCount(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) FROM SystemConfig ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			object obj = SQLiteHelper.GetSingle(strSql.ToString());
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("SELECT * FROM ( ");
			strSql.Append(" SELECT ROW_NUMBER() OVER (");
			if (!string.IsNullOrEmpty(orderby.Trim()))
			{
				strSql.Append("order by T." + orderby );
			}
			else
			{
				strSql.Append("order by T.parameterName desc");
			}
			strSql.Append(")AS Row, T.*  from SystemConfig T ");
			if (!string.IsNullOrEmpty(strWhere.Trim()))
			{
				strSql.Append(" WHERE " + strWhere);
			}
			strSql.Append(" ) TT");
			strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
			return SQLiteHelper.Query(strSql.ToString());
		}

		/*
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetList(int PageSize,int PageIndex,string strWhere)
		{
			SQLiteParameter[] parameters = {
					new SQLiteParameter("@tblName", DbType.VarChar, 255),
					new SQLiteParameter("@fldName", DbType.VarChar, 255),
					new SQLiteParameter("@PageSize", DbType.Int32),
					new SQLiteParameter("@PageIndex", DbType.Int32),
					new SQLiteParameter("@IsReCount", DbType.bit),
					new SQLiteParameter("@OrderType", DbType.bit),
					new SQLiteParameter("@strWhere", DbType.VarChar,1000),
					};
			parameters[0].Value = "SystemConfig";
			parameters[1].Value = "parameterName";
			parameters[2].Value = PageSize;
			parameters[3].Value = PageIndex;
			parameters[4].Value = 0;
			parameters[5].Value = 0;
			parameters[6].Value = strWhere;	
			return SQLiteHelper.RunProcedure("UP_GetRecordByPage",parameters,"ds");
		}*/

		#endregion  BasicMethod
		#region  ExtensionMethod

		#endregion  ExtensionMethod
	}
}

